Across
- 3. denser plates pushed downward under the other
- 7. lithosphere broken into pieces
- 8. is continually being recycled
- 9. tectonic plates that move toward each other
- 10. layer that contains crust and upper mantle
- 12. german scientist who hypothesized the continents were connected
- 15. sudden release of pressure in plate boundaries
- 16. openings where magma reaches the surface
- 17. place where Wegener died
Down
- 1. molten rock pushed upwards through oceanic crust
- 2. geological event when boundaries collide
- 4. tectonic plates that move away from each other
- 5. evidence the continents may have been connected
- 6. tectonics plates that slide past each other
- 11. name of the first supercontinent
- 13. San Andreas
- 14. continental crust is less ______